Special shape functions (they neither have to be polynomial nor conform to continuity requirements) are created during the solution process.īoth methods are interesting and may be a serious competitor for traditional FEA in the future but I think that SimSolid's algorithm is more revolutionary.
Instead of using a mesh made of regular simple shaped elements it divides the model into arbitrarily shaped volumes.
Pretty much all steps are the same as in regular FEA (same governing equations, matrices and solvers) but the discretization step is different. Even though it's called MeshFree it actually generates mesh but not on the boundaries - traditional FEM is used to solve the problem on internal mesh while boundary values ae calculated using special Dirichlet function.Īltair SimSolid utilizes the method of External Approximations. Midas MeshFree uses Implicit Boundary Method. These two programs use very different methods.
0 kommentar(er)
